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Prevalence, kinetic changes and possible reasons of elevated cardiac troponin T in patients with AV nodal re-entrant tachycardia.
MedLine Citation:
PMID:  23215748     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Background: Elevated cardiac troponin (cTn) has been reported to occur with AVNRT. Little is known about prevalence, kinetic changes, and possible reasons of increased cTn. Methods: We evaluated 139 consecutive patients presenting with AVNRT to the emergency department between 2006 and 2010. Cardiac troponin T (cTnT) was measured serially at baseline, after three and six hours. Patients were evaluated for the presence of structural heart disease or CAD. Troponin was defined as elevated if a value exceeded the lower limit of detection (10 ng/l) using the fourth generation cTnT, or if the value > 99th percentile (14 ng/l) using the new highly sensitive cTn assay. Results: A cTnT > LLD (n = 29) or > 99th percentile (n = 16) was found in 45 patients (32.4%) within the initial six hours after hospitalization. All patients were symptomatic with palpitations, chest discomfort or dyspnea. A complete cardiac evaluation was carried out, including coronary angiography in 32 patients demonstrating an underlying structural heart disease or CAD in 18 cases (56%). Significant CAD was detected in 16 cases. 8 cases required PCI during hospitalization. Elevated cTnT was seen in patients with and without structural heart disease. Conclusions: AVNRT is a possible reason for elevated cTnT, even in the absence of relevant structural heart disease or CAD.
Authors:
M Schueler; M Vafaie; R Becker; M Biener; D Thomas; M Mueller; E Giannitsis; Hugo A Katus
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acute cardiac care     Volume:  14     ISSN:  1748-295X     ISO Abbreviation:  Acute Card Care     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101276603     Medline TA:  Acute Card Care     Country:  England    
Other Details:
Languages:  eng     Pagination:  131-7     Citation Subset:  IM    
Affiliation:
Medizinische Klinik, Abteilung für Innere Medizin III, Universitätsklinikum Heidelberg , Germany.
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